Pearson has put together over 1,500 math video tutorials at Virtual Nerd. The quality is very good, and the topics are aligned with Common Core, so this should be a great resource.
How can you answer the perennial math question: "Am I ever going to use this in real life?" PBS's "Get the Math" website is a great way to show students how math is used in areas like music, fashion, and video game design. Thanks to Emily B. for sharing this one!